You can find the option to delete your account at the bottom of the My Account section of the Settings. There are several scenarios to consider when deleting an account:
If you are the only Member in the Workspace
In this case, deleting your account will also result in the deletion of the entire Workspace and should be done with caution.
If there is more than one Member, but you are the only Admin in the Workspace
Before deleting your account, you must assign another member as an Admin.
Clicking Delete account will show a popup window asking you to confirm the action by entering your account password.
If the Member account you are deleting is assigned as a Lead on any Projects in the Workspace (defined in the Leads section when creating a Project), you must first assign a replacement Lead before proceeding with the Member Account deletion.